Clarification of the nature of the galaxy [CFC97] Cen 05

被引：2

作者：

Bouchard, A ^{[1
]}

Da Costa, GS ^{[1
]}

Jerjen, H ^{[1
]}

机构：

[1] Australian Natl Univ, Mt Stromlo & Siding Spring Observ, Inst Adv Studies, Res Sch Astron & Astrophys, Weston, ACT 2611, Australia

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 2004年 / 116卷 / 825期

关键词：

D O I：

10.1086/426123

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The galaxy [CFC97] Cen 05 has in the past been considered an H I - rich dwarf galaxy in the nearby Centaurus A group. We have used Australia Telescope Compact Array observations to show that the H I associated with [ CFC97] Cen 05 by Cote et al. is most likely a Galactic high-velocity cloud that is centered similar to17' from the optical image of the galaxy. At the optical location of the galaxy, which is not the one tabulated by Banks et al., there is no indication of the presence of H I for velocities less than the upper limit of the H I Parkes All-Sky Survey at similar to12,500 km s(-1). In addition, WFPC2 images of [ CFC97] Cen 05 obtained from the Hubble Space Telescope archive reveal that this galaxy is in fact not a dwarf at all, but rather is a distant background spiral not associated with the Centaurus A group.

引用

页码：1031 / 1034

页数：4

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